Device and process for blowing off ammonia in skim serum through supergravity method

A high-gravity method and high-gravity rotation technology, which is applied in the direction of liquid degassing, separation methods, chemical instruments and methods, etc., can solve the problems of complicated ammonia removal process, inability to collect air, and poor effect, so as to facilitate collection and processing, The effect of simplifying the process and increasing the contact area

Inactive Publication Date: 2017-08-11
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of complex ammonia removal process, poor effect and air pollution caused by inability to collect ammo

Method used

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  • Device and process for blowing off ammonia in skim serum through supergravity method
  • Device and process for blowing off ammonia in skim serum through supergravity method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1: Take 25L of an industrial skim solution, the ammonia concentration in the skim is 0.166% (mass fraction), the temperature of the skim in the experiment is 18°C, and the air temperature is 12°C. The filler 16 is a wire mesh filler, and the gas and the solution are in cross-flow contact.

[0031] The experimental steps are as follows:

[0032] 1. Adjust the glue concentration and pour it into the raw material tank 10.

[0033] 2. Turn on the centrifugal fan 7 and turn on the supergravity rotating packing bed 1 at the same time, and adjust the frequency converter so that the speed of the supergravity rotating packing bed 1 is 800r / min.

[0034] 3. Start the magnetic circulating pump 8 to send the rubber clear material to the supergravity rotating packing bed 1. Adjust the frequency of the centrifugal fan 7 and the liquid flow meter 9 to maintain the gas-liquid ratio at 12.5m 3 / L.

[0035] 4. After stabilizing for more than 10 minutes, take samples from the ...

Embodiment 2

[0037] Embodiment 2: change following conditions, other conditions are the same as embodiment 1. The rotation speed of the supergravity rotating packed bed 1 is adjusted to 900r / min, and the gas-liquid ratio is 16.7m 3 / L. The experimental results show that the outlet ammonia concentration is 0.093%, and the ammonia removal rate reaches 43.98%.

Embodiment 3

[0038] Embodiment 3: change following conditions, other conditions are the same as embodiment 1. The ammonia concentration in the skim is 0.280% (mass fraction), the temperature of the skim in the experiment is 25°C, and the air temperature is 22°C. The rotation speed of supergravity rotating packed bed 1 is adjusted to 700r / min, and the gas-liquid ratio is controlled to 6.3m 3 / L. The experimental results show that the outlet ammonia concentration is 0.136%, and the ammonia removal rate reaches 51.4%.

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Abstract

The invention provides a device and process for blowing off ammonia in skim serum through a supergravity method and belongs to the technical field of blowing off ammonia gas in the skim serum. The problems that in the prior art, an ammonia removal treatment process is complex and poor in effect, ammonia cannot be collected, and air pollution is caused are solved. The device comprises a supergravity rotating packed bed provided with an air inlet, an air outlet, a liquid inlet and a liquid outlet, the air inlet is connected with a centrifugal fan through a vortex shedding flowmeter, the air outlet is connected with a following ammonia recovery or treatment device, the liquid inlet is connected with a raw material tank through a magnetic circulating pump and a liquid flowmeter, the liquid outlet is connected with a liquid storage tank through a U-shaped liquid sealing device, a liquid distributor, a rotor and packing are arranged in the supergravity rotating packed bed, and a demisting device is arranged on the air outlet. The ammonia removal rate is high and can reach 62.5%, the gas is convenient to collect and treat when exhausted, and the purposes of protecting the environment and saving resources are achieved.

Description

technical field [0001] The invention belongs to the technical field of blowing off ammonia in degumming clear, and in particular relates to a device and process for blowing off ammonia in degumming clear by supergravity method. Background technique [0002] After the fresh latex is separated by a centrifuge, it is divided into two parts: concentrated latex and latex. The concentrated latex accounts for about 40% of the weight of the fresh latex, and the latex accounts for about 60%. The separated rubber clear has the following characteristics: low content of dry rubber, high content of non-rubber substances, high content of ammonia, large variability, small average diameter of rubber particles, and easy to rot and smell. Therefore, the ammonia content of the skim discharged from the centrifuge is more than 0.25%, and it takes 3 kg of acid to neutralize one kg of ammonia in production. If the ammonia is not eliminated, the cost will be increased, the product quality will be ...

Claims

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Application Information

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IPC IPC(8): B01D19/00
CPCB01D19/0005B01D19/0052
Inventor 栗秀萍刘有智李宁焦纬洲袁志国李建伟
Owner ZHONGBEI UNIV
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